Question

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Xavier is thinking of a number. Nine more than four times the number is the same as fifteen less than twice the number. What is Xavier's number?
(Equation: 4x + 9 = 15 - 2x)
solve for x

Answer 1

4x + 9 = 15 - 2x
+2x +2x
6x + 9 =15
6x = 15 - 9
6x = 6
x = 1